Resolution card Blood of Acid

beslin wrote:

Vampire A (with 2 blood) in combat with Dracon. Dracon play BoA before strike. both strike declare HS,vampire A for 1 Dracon for 3.
Vampire A decide no prevent HS from Dracon strike,Dracon also no prevent dmg. so vampire A now need to take HS 3 from Dracon strike first. him goes to torpor and him not need to take dmg from BoA because combat is end,that is correct?

Both hand strikes resolve at the same time, so A takes 3 damage and Dracon takes 1 damage (all unprevented). Since A inflicted 1 damage on Dracon, A takes 1 damage from Blood of Acid. The damage must be resolved before the combat ends, even if A goes to torpor.